Device for spraying



jam 28, 136 E 5 NE ZfiZQfli-i DEVICE FOR SPRAYING Filed June 11, 1934 2Sheets$heet l INVENTOR,

c ATTORNEY.

Jan, 28, 1935. E. S. \NARNER ZJQZQJ H DEVICE FOR SPRAYING Filedv June11, 1934 2 Sheets-Sheet 2 INVENTOI;

Karl J It kiwi;

ATTORNEY.

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DEVICE FOR SPEAYZZING oi Massachusetts Application June 11, 1934,

(Cl. see -es) 8 manna.

This invention relates to improvements in devices for spraying liquidwax, or similar preparations for oiling, or waxing floors, or othersurfaces. 4

An object of the present invention is to provide a construction in whichthe liquid wax is evenly distributed, in a finely divided spray effecton the floor, as the operator moves the spraying nozzle of the devicefrom one side of the room to the other.

At the present time, the waxlike preparations now in use, are soprepared that they will dry quickly and leave a finished and polishedsurface.

The invention, broadly, comprises a delivery nozzle for the liquid wax,which is preferably formed with a rectangular-shaped opening from whichthe liquid wax escapes, as a solid. ribbon stream. This nozzle islocated a short distance from-the spray delivery end of the combinedmixture of air and wax, and. is connected to a pipe that conveys theoil, or liquid wax, from a suitable receptacle. Means is provided forforcing air, under pressure, past the exist end of therectangular-shaped nozzle carrying the liquid wax, and forsimultaneously imparting a rotary motion to the air. The mixture of theair and the liquid wax is thus evenly spread onto the floor, or othersurface, by the operator, without leaving any spots that are uncovered.

As a modification, the receptacle, which contains the liquid wax, may beremoved from the nozzle end of the device and the liquid drawn bysuction effect, from a container that is located on the floor, or othersupport.

Further objects and nature of my invention will appear in the body ofthe specification and will be particularly pointed out in the claims.

An important feature of my invention is the rectangular-shaped nozzlefor the liquid wax.

Referring to the drawings:-

Fig. 1 shows the complete outfit comprising an electric motor, a fan forproducing the desired air pressure, a receptacle in which the liquid waxis stored, with a pipe extending therefrom, which is located adjacentthe delivery spray nozzle end.

Fig. 2 is a detail view, showing a receptacle con taining the liquidwax, that is detachably connected adjacent the spraying nozzle.

Fig. 3 is an enlarged; detail, sectional view of the interiorconstruction of the spraying nozzle, showing the means for imparting arotary motion to the air, under pressure; also illustrating the meansfor attaching a jar containing the spraying material to the sprayingnozzle.

Fig. 4 is an end view of the wax delivery nozzle,

illustrating the rectangular-shaped opening in its end through which theliquid was passes.

Fig. 5 is a sectional view on the line 5- 5 of Fig. 3, looking in thedirection oi the arrows.

Fig. is a sectional view on the Fig. 3, looking in the direction of thearrows, showing the curved blades.

Fig. 7 is a detail view of the end of the delivery nozzle for the liquidwax, or other material, li lustrating the rectangular-shaped opening.

Fig. 3 is a longitudinal, sectional view of a modification, in which thepipe that conveys the liquid wax is located the spraying nozzle.

Fig. 9 is a modification in which the helical blades are made shorterand located adjacent the end of the cone-shaped delivery spraying nozzlemember.

Fig. ii) is a sectional view on the line iii-it of Fig. 9, showing thefour (4) helical-shaped blades and the pipe conveying the wax insection, and

11 illustrates the action of the circular currents of air on therihhonlike ierrnatlon of the waxlilre substance.

Referring to the drawings detail:---

1% designates a tubular or pipe member having a conicahshaped sprayingend portion The member l serves as a handle, when in use. A hose member3 is connected at one end of the tubular member Toy means of a clamp 73;its opposits end is attaches to the fan casing carrying a fan that isoperated by the electric motor 5, or other means. 6 designates asuitable receptacle, in which the liquid wax, or other material to besprayed, is placed. Attached to its lower end, is a flexible deliverytube i, that is controlled by the valve Tins tube is attached to thetubular preacher i, means of the clips Q and iii.

The interior construction of the conical shaped spraying end portion 2is shown in Fig. 3, in which are located the three (3) curved, orhelicalshaped members ll, 62 and 53. ll one are retained in theconical-shaped member 2, by means of the ring members 68 and it, whichare inserted in the member 2 and retained by the bent portion 2'.

It will be noticed that the members ii, iii, and iii are made long, forthe purpose of per tting the free passage of air, under pressure,through the conical-shaped spray member 2 and for imparting a rotary, orcircular motion, to the air, as it leaves the orifice i5. Located withinthe member 2, is a tubular member H5, in the outer end of which issecured the liquid wax delivery nozzle member it. The tubular member itis located in the spider ring member it, which is secured in the conicalmember 2 and provides the air spaces ill. The member i6 is provided withan opening 26, which leads to the passageway 2i of the tubular member22, which is attached to the pipe 23, that extends downward into theliquid wax, indicated at 2 1, in the jar 25. This jar is formed with athread at its upper end, whereby it may be attached and removed from thethreaded member 26, that is attached to the conical-shaped spray member2. 2i designates openings through the members 2 and 26, whereby air,under pressure from the member 2, will enter the upper end of the jar25, as indicated by the arrow, and force the liquid wax up the tube 23,through the nozzle ll.

Referring to Fig. 1, it will be noticed that the jar is omitted and thetubular member 7,

which carries the liquid-wax from the receptacle b to the interior ofthe nozzle portion 2, is connected to the pipe member 22. it indicatesan air inlet opening to the interior of the jar 25. The operation of theapparatus, as shown in Fig. l, is as follows:-The air from the fan tpassing through the tubular member l, under pressure, will produce avacuum effect at the open end of the conical-shaped spray member 2.This: will cause the liquid wax to be drawn through. the pipe 71' andescape through the rectangular-shaped nozzle ll in ribbon shape, whereit will come into direct contact with the rotary motion of the air,under pressure, whereby the ribbon of liquid wax will be intimatelymixed with the air, as shown by the arrows 29, and a finely dividedspray eifect will be produced.

In the construction, shown in Fig. 2, and also in Fig. 3, in which thereceptacle t is omitted and the jar 25 is threaded onto the member 25,the air, under pressure, will enter the jar through the opening 2? andcreate a pressure on top of the liquid war 25, forcing it upward throughthe pipe 23 and out through the rectangular-shaped nozzle ll, whereby itwill be thoroughly mixed with the air from the blower fan for sprayingthe floor in an even and uniform manner, which is very important.

It will be noticed that the end of the nozzle ll is made rectangular inshape, as indicated by the numeral 36. It has been found, from actualexperience, that this nozzle opening must be made rectangular forefi'icient operation, in order to obtain the best spraying results, andthat the width of the nozzle opening should be between ten and fortythousandths (.010 and .040) of an inch.

Referring to Fig. 8, in which the interior construction of the conical,tubular, spray member 2 is constructed to receive the pipe 3!, throughwhich the liquid wax from the tubular member l passes to the nozzlemember ll, in this construction, the rotary air, under pressure, fromthe fan t passes through the conical-shaped member 2, where it meets theliquid wax from the delivery end of the nozzle ll, at the point 32. Thepipe 36, it will be noticed, is formed as an integral part of thehelical blades ii, iii and i3, and in this construction, the blades areattached to the ring members 335 and (i l, permitting the pipe 3! andthe blades to be inserted and removed as a unit. 35 is also a ringmember, in which the pipe 36 is located.

Referring to Fig. 9, in which the tubular, or pipe member ill, has oneend threaded for attachment to the tubular portion 33, which tubularportion is formed as a part of the helical blades 39, ill, ll and '52,these blades, it will be noticed, are made much shorter and serve toimpart a aoaaiei rotary motion to the air, under pressure, through theconical member 2. The opposite end of the pipe ii is located in thering, or spider member at, to which the pipe M is connected that conveysthe liquid Wax.

Fig. 5 shows a modification, in which the tubular member 28 opens intothe jar 25. 27 indicates an opening which communicates with the interiorof the jar 25. When the device is in operation, the user places hisfinger, or thumb, over the tubular member 28. This creates a pressure inthe jar 25 and forces the liquid wax from the jar to the nozzle ll, asdescribed. When the finger is removed, the atmospheric air enters thejar, thus destroying the pressure and stopping the operation of thespraying device. The operator, can, therefore, by merely shutting oil,or admitting the entrance of air into the jar 25, control the operationof the device, when in use.

Fig. 6 illustrates a hook ll to receive the rubber tubing l, whichsupplies liquid wax, when the jar 25 is not used.

The nozzle ll, it is to be understood, is made in difierent sizes, asshown in Figs. 3, 8, and 9, and located near to, or away from theopenings l5 and 32. It may be inserted and removed from the part 38, ortube 3i, with a sliding fit.

Referring to Fig. 11, which shows a section #38 of the ribbonlike liquidWax, as it leaves the rectangular-shaped opening 3@ of the nozzle memberll, which is moving in the direction of the arrow $9; the circularcurrents of air, as they leave the openings is or 32, are indicated bythe arrows 5t. These air currents as shown, will strike the opposite andfiat sides of the ribbonlike substance and break it up into finelydivided particles.

What I claim ls:--

l. A spraying device of the kind described comprising, a tubular memberhaving a conical shaped end portion with an exit opening in the apexthereof, means for forcing air under pressure through the said member,means for imparting circular motion to the air in its passage throughthe member, means for supplying a liquid waxlike substance near the openend of the tubular member, and means for producing a long, narrowrectangular-shaped formation to the waxlike substance as it leaves thesupply means adjacent said open end of the tubular member, whereby thecombined effect of the circular currents of air and the long, narrow andrectangularshaped stream of liquid waxlike substance will produce afinely divided spray effect of the waxlike substance and the air, asdescribed.

2. In a spraying apparatus for the purpose described, a tubular memberformed with a contracted circular opening in one end, means for forcingair through the member, means in the said member for imparting acircular motion to the air as it leaves the contracted circular opening,means for delivering a liquid waxlike substance to the contractedcircular opening and in a ribbonlike formation, whereby the circularcurrents of air, as they come in contact with the ribbonlike formationof the liquid waxlike substance, will break up said substance intofinely divided particles.

3. In a spraying apparatus, a tubular member substance to the interioror the tubular member and adjacent the exit opening, in e ribhonliireformation.

4. In s spraying apparatus, a tubular member having an exit openingaxially disposed in an end thereof, means for forcing air through thesame, means for imparting circular motion to the uir as it leaves theopening, means for detachably seeming a receptacle containing thesubstance to be sprayed to the tubular member, means for conveying thesaid substance to a location in the interior of the tubular memberadjacent the exit opening and centrally disposed reletive thereto, in aribbonlike formation, and air vent means for controlling the delivery ofthe said substance.

5. A liquid spraying apparatus comprising, in combination, a tubularmember having a circular exit opening axially disposed in an endthereof, means for forcing air under pressure through the exit opening,means adjacent the exit opening for importing rotary motion to the airas it leaves the opening, a long, narrow nozzle having s,rectangular-shaped opening located on the axis of said tubular memberbetween the exit opening and the means for imparting circular motion tothe sir, and means located in the tubular member for conveying thesubstance to be sprayed to the nozzle.

6. A spraying apparatus having in combination, is tubular member with areducing taper-shaped exit end portion formed with a circular exitopening in the extreme end thereof, a plurality of helically-shapedmembers in the taper-shaped portion, a receptacle containing thesubstance to be sprayed and secured to the taper-shaped portion, menusfor conveying the sold substance to the exit opening, e. removeolenozzle having e. long, nerrow opening through which said substance isconveyed to the and. exit op-enL means for forcing air through thetubular member end communicating means between the taper-shaped portionand the interior of the receptacle.

7. A spraying apparatus for the purpose described, comprising incombination, e. tubular member having a tapered end portion reducing indiameter to a. rounded snout portion, said portion being provided with acircular opening, means for forcing air through said tubular memher, atapered member in said end portion formed with a plurality of spiralfins for imparting a circular movement to the air when forced throughsaid tapered end portion, said tapered mernioer having an axial boretherein, n nozzle removebly secured in said axial bore and provided witha long, narrow, slotlike discharge opening, said discharge opening beingedjustably located adjacent the plane of said circular opening and onthe same axis, and means for forcing a liquid through said axial corefor discharge through sold nozzle.

8. The method of atomizing a. liquid substance to be sprayed whichconsists in forcing air under pressure through a tapered nozzle reducingin diameter and terminating in a circular opening and provided withmeans for importing a. rotary motion to the formed cylinder of air andsimultaneously projecting a liquid substance to be sprayed in aribbonlilre stream in the axis of the revolving cylindrical stream ofair and in the direction of flow of the air.

EARL E5. WARNER.

